For best performance and mileage you should use the same plug that the manufacture intended for it and that is AC Delco. The parts house will tell you the proper gap.
yes they do go bad
Streettrends.com
Champion RC12ECC
Go to nada.com and look under classic cars.
Go to nada.com and choose classic cars. That is a keeper.
Go to nada.com and select used cars.
Go to nada.com and the used car section will give you the values.
You need to go to a shop that has a scanner and they can retrieve the codes and diagnose the problem for you.
A 2006 Chevrolet Impala average price can depend on its car trim. In general, 2006 Chevrolet Impalas go for about $11,500. The range is from the LS Sedan's $10,540 to the SS Sedan's $12,860.
It depends on what kind of Chevrolet you are looking at. If you go to their website it doesn't really tell us which one is a luxary car right on their front page, but when typing Chevrolet luxury cars you may get the car called Chevy Impala. Go to one of their locations to figure out more about luxury cars of Chevrolet. No, Chevrolet is not a luxury car. The top of the line Chevrolet Impala is not no where near a luxury car by luxury car standards. GM makes the Cadillac which is their luxury car brand.
Go to your local parts store and they can sell you what you will need.
Check with an older repair shop or go to the public library.